Apparatus fob charging and discharging furnaces



y 4, 1929. s. D. INSCHO ET AL APPARATUS FOR CHARGING AND DISCHARGINGFURNACES 6 Sheets-Sheet Filed Feb. 13, 1928 May 14, 1929. s. D. INSCHOET AL APPARATUS FOR CHARGING AND DISCHARGING FURNACES 6 Sheets-SheetFiled Feb. 13, 1928 3 km & F R .S g m L L w M May 14, 1929. s. D. INSCHOET AL 1 APPARATUS FOR CHARGING AND DISCHARGING FURNACES Filed Feb. 13,1928 6 Sheets-Sheet V 3 y 14, 1929- s. D. INSCHO ET AL v APPARATUS FORCHARGING AND DISCHARGING FURNACES- e Sheets-Sheet 4 Filed Feb 13, 1928APPARATUS FOR CHARGING AND DISGHARGING FURNACES Filed Feb. 15, 1928 6Sheets-Sheet Patented May 14, 1929.

UNITE?) status turner FFiiCEL SIDNEY DAVID INSCHO AND ALONZO CLAY MORSE,OF SHELBY, OHIO.

APPARATUS FUR CHARGING AND DISGHARGING- FURNACES.

Application filed February 13, 1928. Serial No. 253,911.

This invention relates to an apparatusfoi charging and dischargingfurnaces and is adapted for use in association Withv furnaces forannealing or heat treatment of metal, or

and time lost is considerable, as the work can parts of the plant.

not bo'done with convenience etliciency, or the speed desirable in suchoperations.

It is further Well known to those skilled in the art that in leaving the:t'urnace door open to the air for more or less long perimls of time,that the heat is dissipated therefrom and that the air entering throughthe opeit inn; oxidizes the metal or metal products charged Within thefurnace.

It further Well known to those skilled in the art that the variousmetals or metal products that it is desired. to charge the furnaces withare tuated or located in different In charging a furnace or a pluralitythereof it is necessary to trundle or carry the various kinds of metalor metal products to a point in close proximity to the front of thefurnace or furnaces for charging the furnaces or in discharging themetal or metal linroducts from the .fi'irnace and conveying same toanother location.

llhe invention designed for elin'iinatinp; the laborious and expensivehand nninipulru tion of the metal or metal products in charging ordischarging furnaces and suliistituting therefor, a power operatedapparatus to ac complish the purposes and for carrying: out the objectshereinafter mentioned or incident thereto.

The primary object of the invention is to construct a power operatedapparatus adapt ed to receive and support metal or metal products whichis irovided with means that can he actuated to place or carry sameWithin the interior of a furnace for annealing purposes or the like andmeans to Withdraw the metal or metal. products from the interior of thefurnace at the will of the operator.

Another object of the invention is to pro vide a power operatedapparatus that can be actuated at the will of the operator to travellaterally in either direction so as to provide means of alining theapparatus with the front of a particular furnace, or With each furnaceof a series of alined furnaces located in either side of the apparatus.

Another object of the invention to pro vide a power operated apparatusthat can be operated by mechanical power to charge with metal or thelike or discharge it from a furnace or plurality of furnaces from thefront end of each of a series of furnaces, tlunrehy conserving andeconoinizing in the space re quired in the plant for operating); theapparatus and installing same.

Another object of the invention to provide a power operated apparatusthat permits the charging or discharging of the metal or the like from asingle opei'iing lo :ated in front of the furnace to prevent unduedissipa'ion of the heat hin the furnace, execs sive admission of air andconsequent excessive oxidiyiation of the n'ietal. or metal products.

Another object is to provide a frame for supporting the parts of theapparatusin perforn'iing' their functions and in achieving the objectsof the invention and to provide means for associating therewith avertical s andard that is adapted by suitable electric Wiring to conductand direct an electric cin'rent from a source of supply to the apparatusand controlling mechanism thereof.

Another object of the invention is to provide an antomatically operated.safety means for stopping: the apparatus at a pro-deter. mined point ofits longitudinal movement in either (lll'tliillfill. after chargingordiseharo'- ing the metal or the like into or from the furnace.

A further object of the invention is to provide means for connectingreversible. motors to impart movement to the charging and. dis chargingapparatus and means for stopping the charging and discharging apparatusany point of its longitudinal travel in either direction, at the will ofthe operator.

A further object is to provide means for operating the draw bar of theapparatus which is actuated. by a solenoid.

Another object of the invention is to provide a charging and dischargingapparatus that requires but a minimum opening in the furnace forcharging and disclnirging same,

thereby conserving the heat Within the furnace and preventing excessivecooling thereof.

Another obj ect is to design an apparatus of the kind herein describedthat can be operated for the purpose intended without making itnecessary to subject the movable and cc-acting parts of the apparatus tothe heat within the furnace and deleterious effects thereof.

Another object is to construct a charging and discharging apparatus thatdoes not require any means for elevating and lowering the receptaclepreparatory to charging or (llS- charging the furnace.

These and other objects are attained by the mechanism illustrated in theaccompanying drawings in which Fig. 1 is a plan view of the apparatus,also showing the electric motors and solenoid which are applied theretofor operating same by power.

Fig. 2 is a side elevation of a longitudinal central section of theapparatus and also shows a vertical standard mounted thereon to supportthe conductors used for the purpose of collecting and directing anelectric current from a source of supply to the electric m0- tors andother electrical devices used for the operation of the apparatus.

Fig. 3 is a vieW of the operating or front end view of the apparatus.

Fig. at is a view of the furnace end or rear end View of the apparatus.

Fig. 5 is a cross sectional view of Figure 2 taken on the line 2-2thereof.

Fig. 6 is a cross sectional view of Figure 2 taken on the line 33thereof.

Fig. 7 is a plan view of the controls for the reversible motors,solenoid and the main switch controlling the source of supply ofv theelectric current.

Fig. 8 is a side elevation of a central longitudinal section of theapparatus and a furnace showing the apparatus in position to be actuatedfor charging the furnace with metal tubes or the like in sectional linesand in position to be actuated for discharging the metal tubes or thelike from the furnace in dotted lines.

Fig. 9 shows a bundle or plurality of tubes or the like with a chainwrapped around the bundle of tubes or the like. The chain beingsupported for transportation to and from the apparatus by aconventional. overhead crane (not shown).

In the drawings the parts of the apparatus have been arranged inoperative position, some of the parts bein shown bolted together bybolts, screws, rivets or the like and others arranged to be electric orotherwise Welded together, as preferred. It will be understood that somebolts, rivets, screws or the like are omitted from the drawings thatwould be used to connect the parts together so as to permit the readingof the figures of the drawings more clearly, as the omitted parts formno part of the invention and are used and placed at points in thestructure where mechanical skill suggests that they should be used forstrengthening purposes.

Attention is also called to the fact that the reversible motors,solenoid and control devices used are of conventional type and are wiredfor use of an electric current for their with fan-nines and in theprocess of heat treating metal or metal products, especially seamless dra n ti diingor the l ike. Attenti on, ho wever, is called to the factthat it is not intended to limit its use to tube mills or the like as itmaybe for different purposes without departing from the principle of theinvention.

In the drawings the invention is shown in its preferred embodiment orconstruction and is constructed as follows:

Foundation or truck.

Reference numerals l and 2 indicate rails of a track which are arrangedon the floor in spaced apart and in parallel relation to each other andpositioned in close proximity to the front of a furnace or moved toaiine in sequence with a plurality of furnaces. The apparatus is mountedupon and supported on said rails to provide for lateral movement thereofin either direction.

The frame of the apparatus is supported upon a. cross truck member 3 atthe rear end and is preferably positioned IHHlPlIHtlt'll the frame ofthe apparatus so as to allow the rear end of the apparatus frame toextend beyond the cross truck member 3 in a longitudinal direction. Thefront end of the apparatus frame is supported on a cross truck member awhich is positioned underneath the apparatus frame at or adjacent to itsfront end. The ends of the cross truck members 23 and st preferaolyextend beyond each side of the frame of the apparatus.

The free ends of the cross truck members are preferably bifurcated asshown at 5, (i. and 7. and 8 to provide clearance for the flat r-d truckwheels 9. 10. ll, and t2. the shafts of which are iournaled in boxbearingg s 7'. The arrangement justdeseribed, when the apparatus frameis attached or connected to the cross truck members 3 and 4, provide afolmdation for supporting the apparatus frame and also a wheeled truckfor the apparatus frame that can be moved. to travel laterally in eitherdnction, that 18 to the right or left, when mounted on the rods 1 andOomtruntovr of apparatus fume.

cured to the cross I-beams 15 16 and 17.

The shorter legs or flanges of the angle irons 22 a11d23 are attached tothe webs of the auxiliary I-beanis 20 and 21 as shown in Figures 5 and6. Angle irons and 25 supported upon. and attached to the longer legs ofthe angle irons 22 and 23. but are spaced apart "from the cd thereoi toprovide ways or supporting ledges 26 and 2?. Rails 28 and 29 arepreii'erahly .iuouuted on e, secured to the tops of I-heams 123 and11.41 on a plane with the tops of li-he 20 and 2i.

Uawagc and omen/scion thereof.

A carriage 30 preferably having); a tapered extension 31. made integraltherewitl is pro vided. i The carriage is provided with outardlyhorizontally extending wine portions 32 and 33 which extend over thetops of the lheams 20 and 21 to movably su port the carriage Preferablyllllltll'l'flh'vml lwtween the wing portions 32 and 33 and the top ofthe I-heams 20 and 21 are wearing plates and 3:" The carriage is movablyheld in engage meat with one side ot the it nges oil? the l beams 20 and21 by the tzuuered plates 36 and 37 which overlap same and provideguideways for the carriage. The carriage is also provided with adepending; narrow or re-- duced portion 38.

Push and (Z mo Mr.

A draw bar 39 is pivotally mounted on the carriage upon a pin 41:0. Oneend oi the draw bar is provided with an inwardly inclined shoulderedportion 4 1. The body portion of the draw bar is slightl ward at thepoint indicated at 1-2.

An arm 43 is preferably made integral with the draw bar. The portion oi-the draw bar having the shouldered portion 41 is made slightly heavierthan the rear end 44-1; oi the draw bar to hold and maintain theshouldered end portion of the draw bar in normal position as shown inFigure 9 in full lines. To actuate the shouldered end of the draw bar tooperative position shown in dotted lines in Fig. 8, a conventional typeoi solenoid 415 is employed to operate a lint: mecha nism. tive positionis accomplished by the link mechanism which is constructed as follows:

A solenoid 45 is provided with a solenoid lever 46 which is pivoted on apin all. The longer end from the pin is connected to the armature 48 ofthe solenoid and its shorter end from the pin is connected to one endo2: a link 49. The opposite end of the iinl; ll) is connected to one armof hell crank 50 which is pivotally mounted on a pin 51. The other armof the bell crant. is connected to one end of a connecting rod Theopposite end of the connecting rod is connected to the arm 4-3 of thedraw bar, thereby connecting the armature of the solenoid by a linkedinechanisnn for operation of the draw bar at the will of the operator.

will be understood that the solenoid is operated by an electric currentwired thereto in a conventional manner, through push buttons as shown at53. The push buttons are actuated to complete or break the circuit. Whenthe magnetic influence of the solenoid is produced in the solenoid,armature 4-8 of the solenoid is drawn in an. upward direction impartingmovement to the'link mechanism and thereby to the end of the draw bartilting it to the position shown in dotted lines in 8 to engg age or inposition to engage the aper ture in the receptacle.

To the free end ot the tap wred extension 3 of the carriage 30 a pusheris pivotally at tached by a pin 5!. The pusher is preferably made o't anI-heam tapered at its free end :1 shown at 56, or provided with a plate56 slightly turned upward at its end and fitted betwce the flanges ofthe lj-beam, looming the en d oi? the plate extending beyond the end ofthepusher (not sh own on the drawing). The pusher is adapted to hereciprocated hy the carriage and is supported on. the ways 26 an d 27. i

1/ 'w/y or recap/mole for metal, metal products, tubes or the like.

A receptacle 5'? made of the required dimen ion is )lfOVMlQtl and is)relierabl. con- 1 1 l structeo O! a con'uparatively thin flat sheet ofmetal and its ends as shown at 58 and. 59 (see in 2) are turned up Thereceptacle is sup- ;cd flior sliding inovon'ient on the tops of i s 28and 29 and I-beauis 20 and 21. Supporting members 60 and 61 are attachedto the 1 r too or the rece tacle in s )aced a nut relat] on a I to eachother and the receptacle and are turned up at each end as shown byreference numerals (l2 and 53 to hold a hunch or bundle oi tubes or thelike (34 in place on the receptacle.

At an appropriate position at one end underl'icath the rece )taclc a luv65 is secured 3 G and is provided with a groove 66 which contowns withthe end 56 ot the pusher for en Movement of the draw bar tooperagagement therewith. At the opposite end of 'the receptacle, anopening 67 is provided and is preferably made larger than the shoulderedend portion 41 of draw bar.

Means for ooZZccti Iu and directing an electric oarrmufi from a sourceof supply.

* located in close proximity to the front of the furnace or a pluralitythereof.

At one side and near the end of the apparatns close to the furnace orfurnaces, the following means are employed to conduct the current to theelectric motors and other electric devices for controlling and operatingsame. A vertical standard 72, preferably made of an I-beam, mounted onone end of the cross truck member 3 and is held in position by angleiron brackets 73 and 74 which are secured. to the web of the I-bcam andthe cross truck member 3. Angle iron braces 75 and 70 are secured to theframe and vertical. standard 72 to brace and maintain the vertical.standard in upright position and are attached thereto by any well knownfastening means.

A block of wood or the like 77 is attached adjacent to the top of thevertical standard and contact members 78 and 79 have their endsbifurcated and are secured to the block 77. The free ends of the contactmembers are enlarged and are adapted to contact with the contactelectric conductor bars (38 and 69, thereby conducting the currentthrough the electric wires 80 which are inclosed in the conduit 81 andconducted to the electric motors and other electric devices forcontrolling and operating the apparatus.

Application of power to the apparatus and oontroi thereof by theelectric motor and other devices for moving the apparatus laterally.

To move the apparatus laterally in either direction to aline it with aparticular furnace or one of a series in sequence, a reversible motor 82is provided on one end of the cross truck member 1 and extension thereof5. A p'inion 83 is secured to one end of the motor shaft 8 1 andn'ieshes with a gear 85 n'iounted on and secured. to a shaft- 86 whichis journalcd in bearings 87 and. 88 which. are mounted on and secured tothe cross truck members 3 and 1.

A pinion 88' is mounted on and secured to the shaft 86 and meshes with agear 89 which is mounted on and secured to a shaft 90 upon which theflanged wheel 10 is mounted. A pinion 91 is mounted on and secured tothe shaft 86 and meshes with a gear 92 which is mounted on and securedto a shaft 93 which carries the flanged wheel 9, thereby impartingpositive movement to the flanged wheel 9 in unison with the flangedwheel 10.

The above described mechanism connects the truck wheels 9 and 10 foroperation to move the apparatus in either direction by manipulating thecontrol lever 94 of the conventional control mechanism 95 to drive thercvcrsildc electric motor and rotate the shaft thereof in the directionthat will force the apparatus to move or travel on the rails in thelateral direction desired, at the will of the operator. It will be notedthat the mechanism just described provides means for alining theapparatus with a particular fur nace or a plurality of furnaces locatedlaterally of the apparatus in either direction. The wiring for operatingof the reversiblemotor S is conventional and the current is suppliedfrom the source of supply as indicated at 80.

11! cans for impart ring a forward or rcamcard movement to the carriage.

A reversible motor 95 is provided and mounted on and secured on one endof the *ross truck member 1 in opposed relation to the motor 82. A worm96 is mounted on a shaft 97 of the motor. The shaft 97 is journaled in abearing provided in the capped housing 98. The motor shaft 99 of themotor 95 is coupled to the worm shaft 97 by a coupling 100, therebyimparting movement to the worm 90. Bearings 101 and 102 are provided inthe housing 98 supporting and journaling a shaft 103 at one end.

The other end of the shaft is journaled in depending bearings 104 and105 which are attached to the I-beams 20 and 21. A worm gear 100 ismounted on and secured to the shaft 103 and meshes with the worm 96thereby imparting movement to the shaft 103. A roller sprocket wheel 107is mounted on and secured to the shaft 103 and another sprocket wheel108 is mounted on and secured to a shaft 109. The shaft 109 is journaledin movable bearings 110 and 111. A chain 112 is connected to thesprocket wheels 107 and 108. The shaft 109 is journalcd in movablebearings 110 and. 111 for the purpose of adjustment to properly tensionthe chain.

The adjustmentof the sprocket wheel is accomplished as follows: A screwthreaded tuaerture provided in the cross brace I-beam 11.4. and atlnreaded screw 115 is screwed therein and its end is adapted to abutagainst a boss 110 of the movable bearings. When the screw is actuatedit forces the sprocket wheel. lengthwise and tensions the chain asdesired. After adjustment it is held in place by a lock nut 110. Thecarriage is connected to the roller chain by connecting the dependingears 117 and tongue 117 provided on the carriage to a pin 118 of theroller chain.

Collection of (narrow-t for conducting some to the apparatus.

Brackets 123 and 12 1 are secured to the top of the carriage and theirfree ends are rounded as indicated at 125 and 126 and depending bracketmembers 127 and 128 are supported thereby. To the free ends of thebracket members 127 and 128, contact pieces 129 and 130 are pivotallyattached and the free ends thereof extend over and contact with thelongitudinal side contact bars 131 and 132. The

side contact bars 131 and 132 are secured at their ends by adjustablehooks 133 which engage apertures provided in the ends of the bars. Thecontact bars 131 and 132 are also held in place and supported byinsulator brackets 1341.

A cage 1.35 is provided for the operator to support the controls andmain switch and a seat 36 is provided for the convenience of theoperator. The controls and main switch are secured to the case bybrackets 1.37 or by any other well known fastening means.

To stop the movement of the carriage in either directioi'iautomatically, a convention-- al. automatic safety stop apparatus isused and attached to the operating end of the charging and dischargingapparatus and is constructed as follows:

Construct i012 of stop mechanism.

The shaft 103 has its end reduced and screw threaded as shown at 138. Anut 139 is screwed thereon and is moved thereon back and forth breakingand making the circuit of the current near the end of its travel ineither direction at pro-determined points. The circuit is broken whenthe nut b9 passes beyond the contact member 139 in; eitlmr end thereof.electric circuit.

In Fig. 9 a bundle of tubes (V1 is shown suspended from a conventionalcrane that is used in shop practice for transporting bundles or the likefrom place to place.

A chain 1410 is secured to a conventional crane and its end is providedwith a hook 141. The chain 142 connected to the hook by the ring); M3.he chain 142 is wrapped around the tubes to support same as shown inFig. 9 and the tubes are moved by the crane to a position directly overthe apparatus, preparatory to depositing same on the receptacle 57 shownin Fig. 9.

The contact n'ieniber 139is in the The operation in brief of theapparatus will be described with a special reference to Fig. 8 whichshows the carriage pusher and pivotal draw bar in section preparatory toll'lOVlllg the receptacle with tubes or the like thereon into thefurnace 165 for annealing or other heat treatment. Fig. 8 also showsthereceptacle 57 and the pusher and part of the draw bar within thefurnace in dotted lines and in a position to withdrawor pull thereceptacle with the tubes thereon from the interior of the furnace.

The front end of the furnace is provided with a conventional slidingdoor (not shown) which is raised to permit the furnace to be chargedwith tubes, metal products or the like and is closed during theannealing or heat treating process. The floor of the furnace '15provided with a plurality of rails 166 spaced apart from each other toprovide a support within the furnace for the receptacle 57.

1n the spaces between the rails at a lower elevation lire bricks or thelike are laid. Preparatory to charging the furnace, a plurality of tubes(i i are gathered into abundle or the like as shown in Figure 9 from anylocation in the plant and transported to a position over the receptacle57 and deposited thereon as shown in Fig. 8.

The control lever 94: of the control 95 is then manipulated to drive thereversible motor 95 in a direction that will force the pusher to travelforward toward and into the open end of the furnace as shown in Figure8. The tapered end of the pusher as it moves forward engages the groove66 of the lug and fiercest-he receptacle 57 to travel toward and intothe furnace over the rails 166 to the position shown in. dotted lineswithin the furnace. The draw bar 39 being in normal position as shown inFigure 8 in full lines, the control lever 9 1 of the control 95 is thenmanipulated to drive the motor in the opposite direction and the pusherand carriage is moved to slide back to its initial or normal position onthe frame as shown in section in Figure 8. v

l i hen it is desired to withdraw the receptacle 57 and the metalproducts, tubes or the l ke deposited thereon after being subjected toheat treatment or annealing the lever 94 of the control 95 ismanipulated to cause the draw bar and other associated mechanism totravel. forward partway into the furnace. so that shouldered portion4510f the'draw bar will substantially aline with the opening 67 in thereceptacle 57.

One of the push buttons 53 is then manipulated to cause the armature 48of the solenoid to be subject to the electric and magnetic influences ofthe current and thearmature 4-8 is then drawn in an upward directionactuating the link mechanism which is connected t the ;J .ll11al/ll andto the arm 13 i h dra lit) bar, thereby forcing the draw bar to tiltupwardly through the opening 67 in a position to engage the receptacle57.

The control lever 94 of the control 95 is then manipulated. to drive thereversible motor 95 in a direction to cause the chain to carry or drivethe carriage, draw bar and other associated mechanism to its normal orinitial position. The chain 142 is then w 'appcd around the tubes or thelike passing in the space 167 which provided between the top of thereceptacle and bottom of the tubes which are supported upon the rails 60and 61 for the purpose of providing means for wrapping the chain aroundthe tubes or the like and also to permit circulation of the heat and airaround the metal products.

W'hen it desired to move the apparatus in a sidewise or lateraldirection to aline same with another furnace or for other purposes thereversible motor 82 is made to retate in the direction that it isdesired to move the apparatus in by the manipulation of the lever 119 ofthe control. 120. The manipulation of the control levers 94 and 119 ofthe controls 95 and 120 change the rotation of the reversible motors andprovide for forcing the apparatus to travel in the lateral directionthat it is desired to move same in and aline with a furnace or pluralityof furnaces in sequence.

Attention is called to the fact that in the operation of the mechanismfor charging and discharging the furnace that the mechanism thereof isoperated through the medium of the controls, but if for any reason, theop craters should inadvertently omit to actuate the mechanism to stop itnear the end of its travel in either direction. provision is made, asstated, for auton'iatically stopping same at either end of its travel bythe stop mechanism hereinbcfore referred to.

Attention is called to the fact that the preferred application of powerfor operating the charging and discharging apparatus is by and throughelectric motors and auxiliary electric devices and controls. Theapparatus can be operated for the purpose intended by the application ofother power, as for instance by compressed air, gas or gasoline motor orsteam engine or from power transmitted directly from a line shaft or thelike without deviating from the principle involved in the inventiondescribed herein; hence, we do not desire to be limited to theapplication of power by electric motors.

\Ve claim:

1. In a charging and discharging apparatus for a. furnace. a framemounted for lateral movement in front of the furnace, a movable carriagemounted thereon, a draw bar pivotally mounted on the carriage, a pusherpivoted to the front of the carriage, a r ceptacle provided with a planebottom having an aperture formed therein, a lug having a. groove formedtherein secured to the bottom of the receptacle, the draw bar beingadapted to engage the. margin of the aperture formed in the receptacleand the pusher being adapted to engage the lug that is sccured to thereceptacle.

2. In a charging and discharging apparatus for a furnace, a framemounted for lateral. movement in front of the furnace, a. movablecarriage mounted thereon, adraw bar pivotally mounted on the carriage, apusher pivoted to the front of the carriage, a receptacle provided witha plane bottom having an aperture formed therein, a lug having a grooveformed therein secured to the bottom of the receptacle, the draw barbeing adapted to engage the margin of the aperture formed in thereceptacle and the pusher being adapted to engage the groove formed inthe lug and power-operated means for reciprocating the carriage.

3. In a charging and discharging apparatus for a furnace. a framemounted on wheels for lateral movement in front of the furnace, amovable carriage mounted thereon. a draw bar pivotally mounted on thecarriage, a pusher pivoted to the front of the carriage, a receptacleprovided with a plane bottom and having an aperture formed therein, alug having a groove formed therein which is secured to the bottom of thereceptacle, the draw bar being adapted to engage the margin of theaperture formed in the receptacle and the pusher being adapted to engagethe groove formed in the lug, power-operated means for carrying thecarriage forward and rearward and poweroperated means for alternatelypulling and pushing the receptacle.

4. In a charging and discharging apparatus for a furnace, a framemounted on wheels for lateral movement in front of the furnace, amovable carriage mounted thereon, a draw bar pivotally mounted on thecarriage, a pusher pivoted to the carriage, a receptacle provided with aplane bottom having an aperture formed therein, a. lug having a grooveformed, therein secured to the bottom of the receptacle, the draw barbeing adapted to engage the margin of the aperture formed in the recenacle, the pusher being adapted to engage the lug secured to thereceptacle. power-operated means for moving the carriage to and fro,power-operated means for alternately pulling and pushing the receptacleand means for withdrawing the pusher mechanism from the furnacewithoutmoving or disturbing the receptacle.

5. In a charging and discharging apparatus for a furnace, a truck,power-operated means to move the truck laterally with respect to thefront of the furnace, a frame mounted on the truck, a carriage mountedon the frame for reciprocation, a receptacle mounted on the frame,provided with an aperture and lowing a lug secured to the bottomthereotl, iower-operateil means to en'- mge the hug and push thereceptacle vithin the r'm'uace chamber and poWer-operated. means toengage the margin of th a 'ierture in the receptacle and pull thereceptacle out ol? the furnace :lunnher.

in a cl iarginu and discharging appu ratus :lio a 'ljuruace, a (ruclc,power-operated means to move the truck laterally witi re spect to thetrout of the furnace, a frame mounted on lie-trlielna z rrlagc mountedon the frame or ]U(Jl1l)l(. iftttl0ll, a receptacle mounted on theframe,provided with an aperture and having: :1 lug; secured to thebottom thereof, power-operated means to can gage the lug and push thereceptacle Within the turnace chau'iher, electric power controlled meansto engage the margin of the aperti'ire in the receptacle, power-operatedmeans to stop the movement of the carriage at predetermined points ofits travel.

7. In a charging and discharging app: rains for a furnace, a truck,power-ope;ated means to move the truck laterally Withrespect to thefront of the furnace, at nine mounted on the truck, a carriageiuountei'l on. the frame for, reciprocation, a receptacle moimted on theframe, provided With an aperture and having a lug secured to the bottomthereof,fpower-operated means to engage the ingandpush the receptaclewith in the furnace chamber, power-ope 'atod 1n ians to engage themargin of the ape]? ture and pull the receptacle, 'mweno ierated meansto stop the mrwcment oi the carriage at pro-determined points of itstravel and. means to control theisupply of electric current to thepower-operated means.

8. In a charging and discharging apparatus to]; a furnace, a truck,power-operated means-to move the truck laterally with respectto thefront of the furnace, a frank) mounted on the truck, a carriage mountedon the frame for recimocation, a receptacle mounted on the t who,provided with an aperture and having; a lug seciiired to the bottomthereotl, pinvor-operat d means to engy the lug and push the receptacleWithin-the :turnace chamber, aower-opcrated means to engage the marginof the aperture and pull the receptacle, power-operated means to stopthe novement of the carriage at lure-determined point-s oiiits travel,n'ieans to supply an electric current to the power-operated means of theappa 'atus and controlling; means for directing the flow of an electriccurrent to a specific operatii'uz means of the apparatus at the will ofthe operator.

9. ln a charging and discharging: appaza tus tor furnaces, awrheeledtruck, a :tran'ie mounted thereoz'i, a carriage, nun 'ahle the '1 nine,power-operated means to L movement to the carriage, a recap mounted onand movable on the trance, po weroperated means to engage and push thereeeptacle in one direction and powcr-operated means to engage and pullthe receptacle hack to its normal position.

it). in a chur ing and discharging appai'" tus 'lor turner-es, a\vl'ieeled I :lraine mounted thereon, a carriage m-wahle on the 'lrame,power-oper; means to nmvement to the c. iage, a rz sceptaclc met 11 edon. and mov: hie on the frame, por-fe -o' e" ated nieansto engage andpush the receptacle in one direction,powenoperated means to en.- gageand pull the recept; cle in an opposite direction and means toautomatically stop the iarriage.

11. In a charging and discharging apparatus for furnaces, a Wheeled.truck, a frame mounted thereon, a carriage inovahle on the frame,power-operated means to impart movement to the carriage, a receptaclemounted on and movable on the frame, power-operated means to engage andpush the receptacle in one direction, power-operated means to engage andpull the receptacle hack to its normal position, me; us toautoinaturally stop the carriage, and means to supply an electriccrnrrent to the apparatus.

12, In a charging and discharging, apparatus tor furnaces, a Wheeledtruck, a frame mounted thereon, a carriage un'vahle on the frame,poWer-opeated means to impart movement to the carriage, a receptaclemountoperated means to engage and push the receptacle in one direction,power-operated means to engage and pull the receptacle hack to itsnormal position, means to autou'iatically stop the carriage, means tsupply an electric current to the apparatus and means to control. eachspecific operating means.

13. in a charging; and discharcing apparatus for furnaces, atritiekmeans to impart movement to the truck, a 'liraine carried by the truck,carriage mounted on the frame, a receptacle mimnted on the rame,power-openated means to impart nn'iren'ient to the ar riagg'e, meansattaclunlto the carriage grace and push the receptacle and mounted onthe carriage to pullfthc taele. a

14:. In aclmr 'ing and (liscliarginp tin apparatus for tininzwes, atruck, a carriage mount-- ed tor n'iovement relative to the frame, areceptacle nounted on the frame, powelaopen ated means to impart numerit to the hiriage, mea 1, attached to the carriage to engage and pushthe *eceptacie, means mounted on the carriage to pi ll. the rece atacle.v

15. in an electriea. .y-operated charging; and (liscluiriging iorfurnaces, a truck, means movement to the truck, a if I thetruch, acarriage mounted :he frame, a receptacle mounted on the c eme.nou'enoper ed means to impart movement to the carriz. e, means toenrecep attached to the car nre to engage and push the receptac e, meansscoured to the carriage to pull the l'tltJOldlZltlU, means forcollecting an electric current supply for operating the mechanism of theapparatus separately and controlling means mounted on the frame withinthe reach of the operator.

16. In a charging and discharging apparatus for :t'urnaces, a combinedtrucl; and frame adapted to be moved laterally with respect to the frontof the furnace, a movable carriage mounted on the frame of the truck, areceptacle having a n aperture formed therein and a lug secured theretoand mounted on the frame, rumor-operated means to impart movement to thecarif e, a projectingpusher member connected to the frame of thecarriage which is adapted to engage and push the receptacle within thechan'iher of the furnace, and a draw bar hating a hook formed at its endto engage the margin of the aperture formed in the receptacle andpower-operated means to pull the receptacle out of the cham ber of thefurnace.

1,7. In a charging and discharging apparatus for furnaces, a combinedtrue]; and frame adapted to he moved laterally with respect to the frontof the furnace, a movable carriage mounted on the frame of the truck, areceptacle having an aperture formed therein and. a lug secured theretomounted on the f amc, powcr-o )erated means to impart movementto thecarriage, a projecting pusher member connected to the carriage whichadapted to engage and push the receptacle within the clnunber of thefurnace, a draw bar having a hook formed. at its end to engage themargin of the aperture formed in the receptacle, power-operated means topull the receptacle out of the chamber of the furnace and means tosupply an electric current to a particular prc--:letermined operatingmeans of the apparatus.

18. In a cl'iarging and discharging apparatus for furnaces, a combinedtruck and frame adapted to he moved laterally with respect to the frontof the furiuicc, a movable carriage n'iounted on the frame of the truck,a receptacle having an aperture formed therein and a lug secured theretoand mounted on the frame, power-operated means to impart movement to thecarriage, a projecting member connected to the frame of the carriagewhich is adapted to engage and push the receptacle within the chamber ofthe furnace, a draw bar having a hook formed at its end to engage theaperture formed in the receptacle, power-operated means to pull thereceptacle out of the chamber of the furnace, means to supply anelectric current to a pre-determined operating u'ieans independent ofthe others and controlling means to direct the electric current to aparticular mechanism.

19. In a charging and. discharging apparatus for furnaces, a truck:ulaptcd to be moved laterally with respect to the front of tl efurnace, a frame mounted thereon, a supporting member adapted to bemoved forward and backward on the frame, power operated means to impartmovement to the supporting member, a receptacle having an apertureformed, therein mounted for movement on the :t'rame, power-operatedmeans carried b Y the su )ortin member to engage i h c,

the receptacle for pulling same, a push bar connected to thesupjfiorting member, a hug secured to the receptacle to engage the pushbar to push the receptacle and powcr-operated means to impart movementto the arriage.

20. In a charging and discharging apparatus for furnaces, a truck, aframe mounted thereon, a carriage morahly mounted on the frame, areceptacle mounted on the frame, a push bar connected to the carriageand adapted to push the receptacle within the chamber of the furnace, adraw bar adapted to engage with and pull the receptacle out of thechanmber of the furnace.

21. In a charging and discharging apparatus for furnaces, a truck, aframe mounted thereon, a carriage .movahly mounted on the frame, areceptacle mounted on the frame, a push bar connected to the carriageand adapted to engage with and push the receptacle within the chamber ofthe furnace, a draw bar adapted to engage with and pull the reeci itacleout of the chamber of the furnace, pmvercperated means for impartingmovement to the carriage and means within reach of the operator tocontrol all operations of the apparatus.

In a charging and discharging apparatus for furnaces, a truck. a framemounted thereon, a carriage movably mounted on the frame, a receptaclemounted on the frame, a push. bar connected to the carriage and adaptedto push the receptacle within'the chamber of the furnace, a draw baradapted to pull the receptacle out of the chamber of the fin'nace,power-operated means for imparting movement to the carriage andpoweroperated means to actuate the draw bar.

23. In a charging and discharging apparatus for annealing furnaces, atruck, a frame mounted thereon, a carriage movably mounted on the frame,a receptacle mounted on the frame, a push bar connectedto the carriageand adapted to push the receptacle within the chamber of the furnace, adraw bar adapted to pull the receptacle out of the chamber of thefurnace, power-operated means for imparting movement to the ear riage,power-operated means to actuate the draw har, and means to supply anelectric current to the operating elements of the appa 'atus separatelyand all being within the control of one operator.

24. In a charging and discharging apparaltlO tus for annealing furnaces,a combined frame and truck, a receptacle movably mounted on the frameprovided with a lug and also having an aperture provided therein, acarriage mounted on the frame, means on the carriage to engage thereceptacle for pulling same, means connected to the carriage and adapted,to push the receptacle.

25. Ina charging and discharging apparatus for annealing furnaces, acombined frame and truck. a receptacle nmvably mounted on the frameprovided with a lug and also hav ing an aperture provided therein, acarriage mounted on the frame, a draw bar mounted on the carriage andadapted to engage the receptacle for pulling same, a push bar connectedto the carriage and adapted to engage with and push the receptacle andpower-op erated means to impart movement to the carriage.

26. In a charging and discharging apparatus for furnaces, a combinedframe and truck, a receptacle movably mounted on the frame provided witha lug, and also having an aperture provided therein, a carriage mountedon the frame, a draw bar adapted to engage the receptacle forpulling'same, a push bar connected to the carriage and adapted to pushthe receptacle, power-operated means to impart movement to the carriageand power-0perated means to actuate the draw bar.

27. In a charging and discharging apparatus for furnaces, a combinedframe and truck, a receptacle movably mounted on the frame provided witha lug and also having an aperture provided therein, a carriage mountedon the frame, a draw bar adapted to engage the receptacle for pullingsame, a push bar con nected to the carriage and adapted to push thereceptacle, power-operated means to im part movement to the carriage,poweroperated means to actuate the draw bar and power-operated means tomove the truck laterallv.

28. In a charging and discharging appara tus for furnaces, a truck and aframe, a carriage and receptacle mounted on the frame, engaging devicesof a push and pull type mounted on the carriage and adapted to push thereceptacle within and withdraw the re ceptacle from the chamber of afurnace.

29. In a charging and discharging apparatus for furnaces, a truck and aframe, a carriage and receptacle mounted on the frame, engaging devicesof a push and pull type mounted on the carriage and adapted to push thereceptacle within and withdraw the receptacle from the chamber of afurnace, the carriage and push and pull mechanism being operated bypower.

30. In a charging and discharging apparatus for furnaces, a truck and aframe, a carriage and receptacle mounted on the frame, engaging devicesof a push and pull type mounted on the carriage and adapted to push thereceptacle within and withdraw the re ceptacle from the chamberof thefurnace. the carriage and push and pull mechanism being operated bypower and means to impart lateral movement to the truck and frame.

81. In a charging and discharging apparatus for furnaces, a truck and aframe, a car riage and receptacle mounted on the frame, engaging devicesof a push and pull type mounted on the carriage and adapted to push thereceptacle within and withdraw the receptacle from the chamber of afurnace, the carriage and push and pull mechanism being operated bymachine power, power means to impart lateral movement to the truck withrespect to the front of the furnace and means for collecting an electriccurrent for the operating means of the apparatus.

In testimony whereof we affix our signatures.

SIDNEY DAVID INS'CHO. ALONZO CLAY MORSE.

